Pokémon Black Version and Pokémon White Version - Two-turn attacks
In a two-turn attack, the user prepares for the attack on the first attack segment, and hits target on the second attack segment. The user can’t take any action until the user finishes using a two-turn attack. If the user can’t use a two-turn attack because it has no target, or if the user is prevented from using the attack, the effect ends. PP is deducted on the first attack segment of the two-turn attack.
Two-turn attacks work by checking the last move called by the user. If that move is a two-turn attack, the "second attack segment" of the attack is done. Otherwise, the "first attack segment" of the attack is done. This behavior covers the case of Metronome using a two-turn attack on the first attack segment, then Metronome using the same or a different two-turn attack on the next turn. (The second use of Metronome in this situation is normally only possible if Encore comes in effect for the user after the first use of Metronome.)
A two-turn attack is not a multi-turn attack, and vice versa.
A two-turn attack remains a two-turn attack even if the attack would not take two turns.
For all two-turn attacks, on the first attack segment of the attack’s use, no accuracy check is done, no check is made to determine whether the attack will be ineffective against the target or otherwise be avoided by the target. However, for Sky Drop, the target can still use Protect or Detect to protect itself from the attack on the first attack segment of its use.
{For the two-turn attacks Bounce, Dig, Dive, Fly, Shadow Force, and Sky Drop, the user will avoid all attacks other than the exceptions given in the attack descriptions, even those that "can’t be evaded" or that have an accuracy value of "101" (meaning that no accuracy check is done), while the user is using any one of these two-turn attacks, unless noted otherwise. The user will avoid even Acupressure} and the returned attack from Future Sight and Doom Desire {this way, since it targets the user of the two-turn attack like any other attack. However, Helping Hand and Memento (but not Sketch or Psych Up) will work normally against it.}